| cooperate(verb, join, follow, unite, link) |
| couple(verb, join, unite, link, connect) |
| enrol |
| enroll(verb, follow, enter, enlist) |
| federate(verb, develop, secure, join, unite) |
| fuse(verb, develop, secure, join, unite) |
| get together(verb, expression, phrasal verb, join, unite) |
| go in with(verb, expression, idiom, enter, enlist) |
| go with |
| hitch on(verb, expression, phrasal verb, develop, secure) |
| hook up(verb, expression, phrasal verb, join, connect) |
| incorporate(verb, develop, secure, join, unite) |
| marry(verb, join, unite, link, connect) |
| plug into(verb, expression, phrasal verb, develop, secure) |
| side with(verb, expression, phrasal verb, follow, enter) |
| sign on(verb, expression, phrasal verb, follow, enter) |
| sign up(verb, expression, phrasal verb, follow, enter) |
| slap on(verb, expression, phrasal verb, develop, secure) |
| tack on(verb, expression, phrasal verb, develop, secure) |
| tag on(verb, expression, phrasal verb, develop, secure) |